Electric vehicle has been the most common vehicle in our daily routine. It is improtant to have alarm system for electric vehicle. This item is well made of for durable and practical use. Easy to install and use. Features - Color: Black. - Material: Plastic. - Size: 7.00X3.30X2.30cm/2.75X1.30X0.90 inch. -Note:The shape of the random. - Remote start: Press the button twice and the horn will once, indicating that will , and it can be driven without a key. - Find function: In anti-theft alert status, press the bell button, the horn will 5 times to tell the owner the location of the vehicle, and press any key to stop this state. - Turn off the electric lock when parking, after about 5 seconds, the anti-theft is not set, the anti-theft system will sound a reminder to remind the owner to set the anti-theft. - You can press the lock button and the horn to give a strong alarm within the effective distance range when you encounter fierce while driving, and cooperate with the controller to lock the motor, and press the button to release. - Speeding reminder: When the vehicle speeds exceeds 15 kilometers per hour, the alarm will sound to remind you. Specification - Working voltage: 48V-72V - Working current: &lt;80mA - Quiescent current: &lt;6mA - Working frequency: 433 MHZ - Horn sound level: 120-125db - Applicable models: electric vehicles (48V-72V applicable)</strong Package list: 1 x alarm 2 x remote controls